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Old 12th March 2013, 11:01 AM
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Join Date: Nov 2009
Member of: Harriers
Location: Sutton-in-Ashfield, Notts
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Another interesting experience:
My S&B scope has a standard M58 photo thread at the front lens. Once I tried to apply a Circular Polariser filter, and it caused the scope to ranging lower with many metres! It wasn't the lightness reduction because I tried it with some Neutral Density filters without any difference but the polariser filter affected rangefinding obviously. I don't know whether it was the effect of the polariser part of the filter or the quarter-wave plate but it was interesting to see how the picture goes in and out of focus when I put the filter on and off...
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